From: Donggeun Yoo <donggeunyoo.kernel@gmail.com>
To: SJ Park <sj@kernel.org>
Cc: Donggeun Yoo <donggeunyoo.kernel@gmail.com>,
akpm@linux-foundation.org, damon@lists.linux.dev,
linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v1 1/2] mm/damon/core: charge only the part of a region the filter left
Date: Thu, 17 Sep 2026 10:38:36 +0900 [thread overview]
Message-ID: <20260917013836.100213-1-donggeunyoo.kernel@gmail.com> (raw)
In-Reply-To: <20260917012420.101087-1-sj@kernel.org>
On Wed, 16 Sep 2026 18:24:19 -0700, SJ Park wrote:
> The user impact is that DAMOS could work unexpectedly slow, due to
> over-charged quota. Also DAMOS stat could be confusing. No critical
> events such as crashes or leask happen.
>
> If above is not incorrect, I will add that to the commit message when I
> add this patch to damon/next tree.
That is correct, please add it.
The stale size is only ever arithmetic: damos_charge_quota() and
damos_update_stat() take it, and nothing dereferences or frees against
it, so there is no memory-safety consequence.
Thanks for the review.
next prev parent reply other threads:[~2026-09-17 1:38 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-17 0:35 [PATCH v1 0/2] mm/damon/core: fix the size charged for a filter-trimmed region Donggeun Yoo
2026-09-17 0:35 ` [PATCH v1 1/2] mm/damon/core: charge only the part of a region the filter left Donggeun Yoo
2026-09-17 0:43 ` sashiko-bot
2026-09-17 1:24 ` SJ Park
2026-09-17 1:38 ` Donggeun Yoo [this message]
2026-09-17 0:35 ` [PATCH v1 2/2] mm/damon/tests/core-kunit: test the size charged for a filter-trimmed region Donggeun Yoo
2026-09-17 0:42 ` sashiko-bot
2026-09-17 1:26 ` SJ Park
2026-09-17 1:28 ` [PATCH v1 0/2] mm/damon/core: fix " SJ Park
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